Add error strings for strerror(3)

src/string/strerror.c

@@ -1,7 +1,43 @@
 #include <string.h>
+#include <errno.h>
 
 // "Lower" group of errors
-static const char *error0[64] = {};
+static const char *error0[64] = {
+    [EPERM] =       "Operation not permitted",
+    [ENOENT] =      "No such file or directory",
+    [ESRCH] =       "No such process",
+    [EINTR] =       "Interrupted system call",
+    [EIO] =         "I/O error",
+    [ENXIO] =       "No such device or address",
+    [E2BIG] =       "Argument list too long",
+    [ENOEXEC] =     "Exec format error",
+    [EBADF] =       "Bad file number",
+    [ECHILD] =      "No child processes",
+    [EAGAIN] =      "Try again",
+    [ENOMEM] =      "Out of memory",
+    [EACCES] =      "Permission denied",
+    [EFAULT] =      "Bad address",
+    [ENOTBLK] =     "Block device required",
+    [EBUSY] =       "Device or resource busy",
+    [EEXIST] =      "File exists",
+    [EXDEV] =       "Cross-device link",
+    [ENODEV] =      "No such device",
+    [ENOTDIR] =     "Not a directory",
+    [EISDIR] =      "Is a directory",
+    [EINVAL] =      "Invalid argument",
+    [ENFILE] =      "File table overflow",
+    [EMFILE] =      "Too many open files",
+    [ENOTTY] =      "Not a typewriter",
+    [ETXTBSY] =     "Text file busy",
+    [EFBIG] =       "File too large",
+    [ENOSPC] =      "No space left on device",
+    [ESPIPE] =      "Illegal seek",
+    [EROFS] =       "Read-only file system",
+    [EMLINK] =      "Too many links",
+    [EPIPE] =       "Broken pipe",
+    [EDOM] =        "Math argument out of domain of func",
+    [ERANGE] =      "Math result not representable"
+};
 
 char *strerror(int errnum) {
     if (!errnum) {